Fabio... as for computer placement, how about on the wrist for the control tabs (as with the hoseless/air integrated systems), but with a heads-up display built into your mask using the new transparent ASICS, instead of the LCD version Oceanic just demonstrated?I also like the idea of a GPS enabled "Trac-Bac" (ala Garmin), or a long-wave directional beacon to get you back to your boat if the drift was just a little too far.